HomeMy WebLinkAboutCT 97-16A; Kelly Ranch; Tentative Map (CT) (4)I
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• Natural Habitat Revegetation Program
• Kelly Ranch "Core Area"
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• Rev. May 14, 2001
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•
Prepared for:
Kelly Land Company
c/o Hillman Properties
1 2011 Palomar Airport Road
Suite 206
Carlsbad, California
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Prepared by:
- PLANNING SYSTEMS
J Greg Evans, Landscape Architect LA #3900
1530 Faraday Avenue, Suite 100
_ Carlsbad, CA 92008
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Natural Habitat
| Revegetation Program
Kelly Ranch "Core Area"
1.0 INTRODUCTIONI
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Kelly Ranch is a largely undeveloped 432.4 acre property in the City of Carlsbad, San
Diego County, California (Exhibit 1). The "Core Area" of Kelly ranch, including all
areas to be impacted by the proposed project, totals 154.85 acres (Exhibit 2). A
development project is proposed that involves the subdivision and development of the
Core Area for residential uses (Exhibit 3). The resulting project will impact natural
vegetation occurring on the site, requiring mitigation measures including the
revegetation of two natural plant communities, as determined by the "Biological
Assessment, Kelly Ranch Core Area", Planning Systems, May 10,1999. This plan
provides a conceptual framework for the revegetation construction documents,
installation procedures, maintenance, and monitoring required to fully establish the
required native plant communities on-site.
Project related impacts to natural vegetation will result from grading activity,
infrastructure improvements on-site, remedial grading during the construction phase,
and fuel modification zone establishment and maintenance. The project also requires
infrastructure off-site, including two roads and two water lines. These off-site
improvements are included in total acreage, acreage impacted, and acreage preserved
calculations (see table 1).
This Natural Habitat Revegetation Program proposes the on-site installation,
maintenance, and monitoring of Coastal Sage Scrub and Southern Maritime Chaparral.
The proposed planting includes installation of container plants and hydroseeding,
supported by a fully automatic irrigation system. Plant installation will be followed by
five years of monitoring and maintenance.
Revegetation Program Objectives
1) To offset the loss of 18.26 acres of Coastal sage scrub (CSS) habitat by:
a) preservation of 40.11 acres of CSS,
b) revegetation of 9.28 acres of CSS,
c) revegetation of 4.90 acres of CSS (for fire suppression),
a ratio of preservation / revegetation : impacts = 2.97:1 (including fire suppression
Section 3).
2) To offset the loss of 5.11 acres of Southern Maritime Chaparral (SMC) habitat by:
a) preservation of 7.40 acres of SMC,
b) revegetation of 2.99 acres of SMC,
a ratio of preservation / revegetation : impacts =2.03:1 (exclusive of fire suppression).
Kelly Ranch Core Area Natural Habitat Revegetation Program 1
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3) To restore functioning coastal sage scrub and Southern maritime chaparral that is
self-sustaining over time and capable of supporting native plant and animal species.
4) To restore native habitat that is ecologically appropriate to the site.
5) To insure to proper establishment of CSS and SMC through the implementation of a
five year monitoring and maintenance program.
The following table provides summary information for existing plant community
quantities, project impacts, areas to remain undisturbed(and preserved as open space),
proposed revegetation and the ratio of project impacts to preservation / revegetation.
Existing habitat area quantities and base mapping provided herein are derived form
"Final supplemental Environmental Impact Report (EIR 98-05) for the Kelly Ranch
General plan Amendment and "Core Area" Subdivision, A. D. Henshaw Associates,
January 15,1999".
Table 1
Vegetation Impacts / Preservation / Revegetation
Vegetation Community
Coastal Sage Scrub
Dist. Coastal Sage
Baccharis scrub
So. Maritime Chap'l
Native Grasslands
Dist Native g'lands
Detention Basin
Mule Fat Scrub
Riparian Herb
Non-native Grasslands
Agriculture/Developed
Disturbed
Ruderal
TOTAL
Existing
Total
(acres)
58.37
12.51
0.81
0.60
0.69
21.99
51.98
4.55
3.35
154.85
Impacts
Impacted
(includes fire
suppression )
(acres)
18.26
5.11
0.39
0
0
19.71
51.65
2.72
3.35
101.19
Preserved /Revegetated
Preserved
(acres)
40.11
7.40
0.42
0.60
0.69
0*
0*
0*
0
49.22
Revegetated
(acres)
9.28**
(4.90 fire
sup'n)**
2.99*
0
0
0
0
0
0
17.17**
Total
Preserve\
Reveg.
(acres)
54.29
10.39
0.42
0.60
0.69
0
0
0
0
66.39
Ratio
Preserve :
Impacts
(sensitive
habitat only)
2.97 : 1
2.03 : 1
1.08 : 1
Source: Merkel & Associates, "Kelly Ranch Biological Constraints Analysis," 5/20/98.
* Revegetation of disturbed, non-native species is a California Coastal Commission condition.
** Fire Suppression: Section 3 revegetation = 4.90 acres, Section 1-2 revegetation = 3.91 acres for a
Grand Total of 21.08 acres of revegetation.
Kelly Ranch Core Area Natural Habitat Revegetation Program
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Oceanside
* Vista
Ocean B-acI
San Diego f'^
U'CoronadoV, o,c;o 'i/V?
Imperial Beach
SOURCE: San Diego Association of Governments
NO DATE
Regional MapA.D.Hinshaw Associates
Kelly Ranch Core Area Natural Habitat Revegetation Program
\-v\\ \ ,- 'x'fesSft^:^•~-;\:;i
00^5^'
SOURCE: USGS Quad Maps - San Luis Rey & Encinitas
DATE: 1975
A.D.Hinshaw Associates Vicinity Map Exhibit 2
REVISED: PLANNING SYSTEMS, APRIL 15. 1999
Kelly Ranch Core Area Natural Habitat Revegetation Program
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Kelly Ranch Core Area Natural Habitat Revegetation Program
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Exhibit 3
REVEGETATION PLAN
REVISED IN SATISFACTION OF CALIFORNIA COASTAL COMMISSION REQUIREMENTS
COASTAL SAGE SCRUB REvEGETATION op^ SPACE DESCRIPTION
0.18 ACRES OF EXISTING VEGETATIONALLOTTED AS AREA E MITIGATION.
OPEN SPACE PRESERVE BOUNPART
Area tt
m%ffl£&
R\
R2
R3
R4
R5
R6
R7
R8
R9
RIO
Rll
R12
R13
R14
R15
TDTAL
' Habitat
Revegetated
CSS (n/e facing)
CSS (s/w facing)
CSS (n/e facing)
CSS (n/efacing)
CSS Cn/efaclng)
CSS (s/w facing)
CSS (n/e facing)
CSS (n/e facing)
CSS (n/e facing)
CSS (n/e facing)
CSS (s/w facing)
CSS (s/w facing)
CSS (s/w facing)
CSS (s/w facing)
CSS (s/w facing)
Size
(acres)
1.34
1.51
1.17
0.08
0.08
0.25
0,14
0.23
0.31
0.84
0.65
1.72
0.10
0.29
0.57
9.28
THE "CORE AREA" OF KELLY RANCH INCLUDING NECESSARY
OFF-SITE IMPROVEMENTS, AND EXCLUDING PREVIOUSLY
PERMITTED AREAS, EQUALS 154.85 ACRES. HABITAT
PROPOSED TO REMAIN UNDISTURBED IN THE "CORE
AREA" TOTALS APPROXIMATELY 49.22 ACRES.
UPLAND HABITAT TO BE REVEGETATED
TOTALS II. n ACRES. TOTAL ACREAGE
TO BE OFFERED FOR DEDICATION
AS OPEN SPACE EQUALS
66.39 ACRES.
SO. MARITIME CHAPARRAL REVESSTATION
Area *
taaoKaSIS^
R16
R17
R18
R19
R20
R21
R22
R23
TDTAL
Habitat
Revegetated
SMC Revegetation
SMC Revegetation
SMC Revegetation
SMC Revegetation
SMC Reveoetatlon
SMC Revege-ta-tion
SMC Revegetation
SMC Revegetation
Size
(acres)
0.64
0.90
1.43
0.04
0,28
0.04
0,35
0.03
3.71
FIRE SUPPRESSION REVESETATICN • Swstfen 3
Area tt Habitat Size
Revegetated (acres)
| |
Fl
F2
F3
F4
F5
F6
F7
F8
F9
F10
TOTAL
Fire Sup.
Fire Sup.
Fire Sup.
Fire Sup.
Fire Sup.
Fire Sup.
Fire Sup.
Fire Sup.
Fire Sup.
Fire Sup.
Section 3
Section 3
Section 3
Section 3
Section 3
Section 3
Section 3
Section 3
Section 3
Section 3
0.12
0.21
0.49
1.45
0.80
0.23
0.89
0.31
0,15
0.25
4.90
FIRE SUPPRESSION REVEGETATION - Saetron 1-2
Planted with low fuel, low water, species.
Fire Sue, Section 1-2
TOTAL 3.91
SCALE: - I" =
NORTH ° 75 150 300 FT
Rev. May II, 200\
Rev. July 30, B33
May 4, I939
AREA TO REMAIN UNDISTURBED
CCS COASTAL SAGE SCRUB
DSMC DIST. SO. MARITIME CHAPARRAL
DPG DIST. PERENNIAL GRASSLAND
DCSS DIST. COASTAL SAGE SCB.
SMC SOUTHERN MARITIME CHAP.
PQ PERENNIAL GRASSLAND
PLANNING AREA E
NOT A PART
"CORE" AREAS DISTURBED DURING GRADING
OF AREA E HAVE BEEN MITIGATED FOR,
AND NOW EXIST AS COASTAL SAGE SCRUB
REVEGETATION.
CALLAUAN
PARCEL
NOT A PART
EROSION
CONTROLPLANTING
KELLY RANCH PROPERTY UNE
OFF-SITE EROSION CONTROLPLANTING DUE TO FARADAT
ROAD CONSTRUCTION
OFF-SITE REMEDIAL
GRADING REQUIRED
(EROSION CONTROLPLANTING)PROPOSED WATER EASEMENTREVEGETATION
PS. -3*1338 FILE NAME; 638-r»vla&2>].DWO
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2.0 REVEGETATION PROGRAM
The intent of this Revegetation Program is to specify improvements which introduce and
provide for the establishment of native plant species which closely reflect the biological
character of adjacent existing native plant vegetation. The ultimate goal of the effort is
to successfully revegetate primarily manufactured slopes with coastal sage scrub or
southern maritime chaparral vegetation similar to local native vegetation.
This Revegetation Program is developed based upon site observations of adjacent
native habitats. Previous experiences with coastal sage scrub revegetation and
Southern maritime chaparral revegetation provides an additional basis for this plan.
Existing and proposed site conditions have been assessed for suitability and it is
expected that coastal sage scrub and southern maritime chaparral habitat may become
established in the time frame provided for in the performance standards (a period of five
years).
This revegetation program includes provision of irrigation (as a temporary aid to the
establishment of plantings,) site preparation, invasive exotic weed control, seed and
container plantings, and a monitoring program. One component of this program provides
for the establishment of baseline inventories for existing vegetation adjacent to designated
revegetation areas, as a model for species composition. This program includes a
provision for the adjustment of plant species composition after inventories are performed.
Coastal sage scrub and southern maritime chaparral is found adjacent to the
revegetation sites. All proposed enhancement areas are contiguous to like habitat. The
process of modeling each habitat enhancement area's plant composition on the
baseline of an adjacent area will result in revegetation that closely resembles local
species composition.
It is anticipated that the biggest obstacle to the successful revegetation of these
communities will be the control of invasive exotic weed and grass species within and
surrounding the revegetation site. The exotic species will compete with the native
revegetation until they are well established.
STAKING OF REVEGETATION AREA LIMITS
Initial revegetation activity shall involve staking the limits of the revegetation areas with
wooden lathe and flagging tape to differentiate work zones from existing vegetation to
be protected in place. If prior to or during installation the revegetation monitor
determines a need, then orange snow fencing will be installed as necessary to further
protect existing habitat from accidental disturbance.
SITE PREPARATION
Site preparation for revegetation areas will be provided prior to other operations.
Scarification of the soil, weed eradication and erosion control are included in site
preparation. Note that fertilizers are included as part of the various hydroseed mixes.
Kelly Ranch Core Area Natural Habitat Revegetation Program
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SCARIFICATION
The final soil surface of all areas to be revegetated shall be left in a rough condition.
The intent is to provide small ledges, cracks and crevices for seeds to lodge and to
reduce erosion. These depressions and ledges will provide shelter for small seedlings
and increase water infiltration and retention and root penetration. The landscape
architect shall verify that scarification of revegetation areas with a tracked vehicle has
occurred during final grading of these areas. If not existing, equipment shall be run up
and down the slope vertically to provide small horizontal ledges for the seedbed.
EROSION CONTROL
Provide erosion control (hay or gravel bales) as indicated on the engineers erosion
control plans or as directed by the Landscape Architect.
SOIL PREPARATION
Soil analysis will be performed for the revegetation areas, conforming to standards
acceptable to the City of Carlsbad prior to revegetation site planting. If soil tests indicate
that unacceptable conditions such as high salts or poor infiltration occur in any
revegetation areas, those areas will be abandoned as revegetation sites. As-built
construction drawings approved by the City of Carlsbad will document revegetation area
configuration changes as required by unacceptable soil conditions discovered in the field.
WEED ERADICATION
Weed eradication will be provided during site preparation where existing site conditions
indicate an extreme and intensive problem. Weed eradication shall be performed as a
maintenance item for all revegetation areas. Isolated or dense patches of perennial
weeds may be targeted for herbicide treatment as necessary.
REVEGETATION PLANTING
A combination of container planting and seeding are proposed to provide the breath of
species representative of CSS and SMC, with woody plant types generally planted and
herbaceous types seeded. Component species and planting rates are based upon
percentage goals aimed at creating the following range of species mix:
Coastal Sage Scrub Revegetation Area Composition
15%-25% Artemisia californica, Coastal sagebrush
15%-20% Encetia californica, Coastal Daisy
5-10% Salvia mellifera, Black sage
25-40% Other woody shrubs
15-20% Gaps of bare ground or herbaceous plant materials
Southern Maritime Chaparral Revegetation Area Components
15-25% Adenostema fasciculatum, Chamise
15-25% Ceanothus verrucossus, Coast White Lilac
5-10% Salvia mellifera, Black sage
25-40% Other woody shrubs
15-30% Gaps of bare ground or herbaceous plant materials
Kelly Ranch Core Area Natural Habitat Revegetation Program 8
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These percentages vary somewhat from area to area to be generally consistent with
observations of current composition of existing habitat near the revegetation area. All
the species listed in the hydroseed and container planting lists were either identified on
site or are listed in the previous botanical surveys, with the exception of non-native and
other native annual herbaceous species utilized as cover crops during the
establishment period.
Prior to implementation of this program, baseline inventories for existing vegetation
adjacent to the habitat enhancement sites will the made. Accepted procedures such as
the California Native Plant Society's point intercept method will be utilized by the
Landscape Architect to provide the baselines. The plant species identified and
composition baselines will become models for species composition of adjacent habitat
enhancement areas. The composition goals and specific species indicated in this plan will
be adjusted after baseline inventories are complete. The total number of plantings per
acre will remain unchanged.
Container materials will be installed in all revegetation areas. The quantities and species
of container materials will be calculated from baseline inventories, or as directed by the
project biologist prior to construction document finalization.
The following tables provide hydroseed mixes suggested for each planting area.
MIX A: COASTAL SAGE SCRUB (EAST AND NORTH FACING)
% Pur/Germ LBS/ACRE SPECIES COMMON NAME
15 50 2 Artemisia californica
2 40 3 Baccharis pit spp consanguinea
95 80 2 Bromus carinatus
40 60 2 Encelia californica
10 65 2 Eriogonum fasciculatum
10 25 2 Gnaphalium californicum
20 40 2 Isocoma m. var. vernoides
90 60 3 Lotus scoparius
98 80 3 Lupinus bicolor
5 70 0.5 Mimulus aurantiacus
70 60 2 Nessella pulchra
98 75 20 Plantago insularis
85 50 1 Salvia mellifera
SAGEBRUSH
CHAPARRAL BROOM
CALIFORNIA BROME
BUSH SUNFLOWER
CALIF. BUCKWHEAT
CALIF. EVERLASTING
GOLDENBUSH
DEERWEED
PIGMY-LEAF LUPINE
STICKY MONKEY FLOWER
PURPLE NEEDLE GRASS
Plantago
BLACK SAGE
44.5 TOTAL POUNDS PER ACRE
MIX B: COASTAL SAGE SCRUB (WEST AND SOUTH FACING)
% Pur/Germ LBS/ACRE SPECIES COMMON NAME
15 50 2 Artemisia californica
2 40 1 Baccharis pit spp consanguinea
40 60 3 Encelia californica
10 65 2 Eriogonum fasciculatum
10 25 2 Gnaphalium californicum
20 40 2 Isocoma m. var. vernoides
90 60 3 Lotus scoparius
98 80 3 Lupinus bicolor
5 70 0.5 Mimulus aurantiacus
70 60 2 Nessella pulchra
98 75 20 Plantago insularis
85 50 2.5 Salvia mellifera
SAGEBRUSH
CHAPARRAL BROOM
BUSH SUNFLOWER
CALIF. BUCKWHEAT
CALIF. EVERLASTING
GOLDENBUSH
DEERWEED
PIGMY-LEAF LUPINE
STICKY MONKEY FLOWER
PURPLE NEEDLE GRASS
Plantago
BLACK SAGE
43.0 TOTAL POUNDS PER ACRE
Kelly Ranch Core Area Natural Habitat Revegetation Program
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MIX C: COASTAL SAGE SCRUB FIRE SUPPRESSION SECTION 3
% Pur/Germ LBS/ACRE
98 70
2 40
40 60
10 25
20 40
20 40
90 60
98 80
5 70
70 60
98 75
MIXD:
Pur/Germ
98 70
15 60
95 80
15 20
20 40
75 80
40 60
98 80
5 70
85
70 60
98 75
85 50
0.5
1
3
2
3
2
3
3
0.5
2
20
40.0 TO
SOUTHERN
LBS/ACRE
0.5
1
2
2
2
2
3
3
0.5
3
2
20
1
SPECIES
Achillea millefolium
Baccharis pil spp consanguinea
Encelia califomica
Gnaphalium californicum
Harzardia squarrosa
Isocoma . var. vernoides
Lotus scoparius
Lupinus bicolor
Mimulus aurantiacus
Nessella pulchra
Plantago insularis
TAL P6UNDS PER ACRE
COMMON NAME
YARROW
CHAPARRAL BROOM
BUSH SUNFLOWER
CALIF. EVERLASTING
SAW-TOOTH GOLDENBUSH
GOLDENBUSH
DEERWEED
PIGMY-LEAF LUPINE
STICKY MONKEY FLOWER
PURPLE NEEDLE GRASS
Plantago
MARITIME CHAPARRAL (EAST AND NORTH FACING)
SPECIES
Achillea millefolium
Artemisia califomica
Bromus carinatus
Gnaphalium californicum
Harzardia squarrosa
Lasthenia chrysostoma
Lotus scoparius
Lupinus bicolor
Mimulus aurantiacus
Nemophilla menziesii
Nessella pulchra
Plantago insularis
Salvia mellifera
COMMON NAME
YARROW
SAGEBRUSH
CALIFORNIA BROME
CALIF. EVERLASTING
SAW-TOOTH GOLDENBUSH
GOLD FIELDS
DEERWEED
PIGMY-LEAF LUPINE
STICKY MONKEY FLOWER 95
BABY BLUE EYES
PURPLE NEEDLE GRASS
Plantago
BLACK SAGE
42D TOTAL POUNDS PER ACRE
INSTALLATION SPECIFICATIONS
Irrigation
Overhead irrigation shall be provided for the proposed revegetation areas. The system
will be used for seed and plant establishment. Application rates will be gradually
reduced as the plantings mature.
Irrigation spray heads and nozzles will be selected to match the areas of revegetation
and shall be adjusted so as not to over spray adjacent native vegetation. Check valves
to prevent low head drainage will be utilized throughout the revegetation areas.
The contractor shall provide adequate personnel to operate the system as required for
proper seed germination and plant growth. Estimated operating times will be provide by
the Landscape Architect. The schedule presented will be an approximate schedule for
the application of supplemental water. Adjustment will be required according to actual
field conditions, soil moisture and weather.
Planting
This program is to serve as a guide for revegetation installation. Minor field modification
and flexibility must be incorporated into the implementation to achieve the desired
goals.
Kelly Ranch Core Area Natural Habitat Revegetation Program 10
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A seed mix type and quantities of container material are given for each planting area.
Each area will be reviewed and approved for seeding and planting by the Landscape
Architect prior to execution of the work. The actual placement and spacing of container
plant materials shall be done in a semi-random, drift type pattern, in the approximate
quantities per species indicated above. A grid pattern shall be avoided. The distribution
of adjacent, native vegetation shall be used as guideline for plant placement. The
Landscape Architect will direct the location of container material within each
revegetation site.
These planting procedures shall be exercised when planting container stock:
1. Dig plant holes twice as deep and wide as plant container.
2. Fill planting hole with water and allow to percolate into subsoil.
3. Add some non amended (native) backfill soil to hole and place plant so that the
top of rootball is 1" higher than the surrounding soil surface.
4. Fill in around plant with non amended soil.
5. Thoroughly water the plants again.
Container plants shall be planted just prior to hydroseeding. Plants shall be protected
from hydroseed mulch by covering the plants prior to hydroseeding.
Hydroseedina
After the irrigation installations are completed, site preparation has been completed, and
container installation has occurred, hydroseed in the designated areas. All hydroseed
materials shall be applied in the quantities specified. Hydroseeding shall be performed
only at times when winds are calm.
Hydroseeding shall consist of a hydraulic application of a slurry mixture of water, seed,
fertilizer, organic soil stabilizer and mulch. Apply the following materials in a one step
hydroseed application:
2000 Ibs/acre Cellulose Wood Fiber
160 Ibs/acre Organic Soil Stabilizer, M-Binder or equal
1 GAL/ACRE Nacco Humic Acid
Seed mix specified
All seed shall be delivered to the project site in sealed containers. All seed shall be
labeled according to state and federal laws. Each sealed container shall bear the seed
suppliers tags which shall indicate the container weight, seed type (genus and species),
seed purity %, seed germination % and date seed tested. Samples of each seed mix
may be drawn at the time of delivery to the site by the Landscape Architect. Samples
shall be tested to assure compliance with the seed specifications.
Fertilizer
Fertilizer and soil amendments will be incorporated into the revegetation areas based
upon the recommendation of soil testing results as required per City of Carlsbad
standards. Thereafter, regular but infrequent light applications of fertilizer may be
beneficial. Fertilizer shall be applied as needed as indicated by soils testing. Usually
about 4-6 weeks after seeding, or in the spring, a nitrogen deficiency may occur. This is
due to frequent (germination phase) irrigations that wash nitrogen from the soil.
Kelly Ranch Core Area Natural Habitat Revegetation Program 11
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Drought tolerant, native species have low nitrogen requirements, approximately 1/5 to
1/8 of the recommended rate of fertilizer should be applied. After the initial fertilization
further applications should be based on visual inspections of the plants to determine if
and when additional fertilization is necessary.
Installation Timing
Revegetation will begin with irrigation system installation and adjustment. After the
irrigation systems are operational, site preparation including soil preparation shall be
performed, followed immediately by container plant installation. Hydroseeding will follow
the container installations. The revegetation areas will then be watered until the seed is
germinated and established (approximately 120 days.) The precise schedule will vary
upon weather, soil conditions and seed germination, and will be adjusted as required by
the Landscape Architect.
CONSTRUCTION SCHEDULE
The schedule presented below is provided as a target schedule for the implementation
of the improvements:
Irrigation Systems Installed Sept. 1-30
Container Planting Oct. 1
Hydroseed Applied Oct. 15
Germination Period-
Moderate Water Applications (30 days)- Nov. 1 - Nov 30.
Establishment Period-
Low Water Applications (90 days)- October 15- January 15
Re Seed,, if needed January 15
Final Acceptance of Installation (120 days)- February 15
OPINION OF PROBABLE COST
The acreage proposed for revegetation, excluding fire suppression revegetation equals
10.24 acres. Installation, initial maintenance, and monitoring costs are provided below.
CSS and SMC Revegetation (17.17 acres)
descriotion
Slope irrigation
Revegetation hydroseed
Shrubs
Maintenance (5 year)
Monitorina (5 year)
quantitv
747,925
747,925
7,480
747,925
17.17
TOTAL
unit
S.f.
S.f.
1 gal.
S.f.
acres
unit cost
0.25
0.04
5.00
0.05
S3.500
sub-total
$186,981
$29,917
$37,400
$37,396
$60.095
$351,789
3.0 ESTABLISHMENT MAINTENANCE
Establishment maintenance activities shall be carried out over a period extending from
the container planting though the seeding and 120 days afterwards.
Kelly Ranch Core Area Natural Habitat Revegetation Program 12
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Maintenance activities shall include irrigation, fertilization, weeding and plant
replacement. Contractor shall provide personnel to operate system in early morning
hours and on weekends.
IRRIGATION
The schedule will be prepared as an approximate schedule for the application of
supplemental water. The schedule shall be adjusted as required by field conditions,
plant growth and weather, in coordination with the landscape architect. Do not irrigate
on days of rain.
Irrigation shall begin 24 hours after the hydroseeding is completed. Maintain even
moisture on the soil surface at all times. Depending on the weather and soils this may
require short duration applications as often as three times per day during warm sunny
days. Do not create wet or soggy conditions by over watering. Applications shall be
scheduled to occur when there is the least wind.
Soil moisture shall be visually checked often so that the irrigation schedule can be
adjusted.
As the seeds germinate and an even coverage of seedlings (two to three inches in
height) is realized, the frequency of irrigation should be gradually reduced and the
duration increased.
After the establishment stage and when the irrigation frequency has been reduced,
infrequent deep irrigation is recommended, By decreasing irrigation frequencies and
increasing the cycle duration deep roots are encouraged and overall plants are
healthier. To obtain deep water penetration and thoroughly moistened the soil to a
depth of one to two feet it may be necessary to cycle the irrigation system several times
in one twenty-four hour period.
FERTILIZER
Fertilizer applications of "Bandini 'Pro-choice1 Nutri-rite" at a rate of 200 IB/acre shall be
applied by hand broadcasting 30 to 45 days after the hydroseeding. Additional
fertilization may be added at the future direction of the Landscape Architect.
WEED ERADICATION
Many invasive and exotic weeds have been observed growing on the site and adjacent
to the site, these weeds shall be controlled within revegetation areas. The species
listed below have been identified as the weed species most likely to invade into native
areas.
Many weeds can be eradicated by vigilant hand pulling (H). It is essential that these be
pulled out and removed from the site on a regular basis before the seeds ripen and
drop. The other weeds shall be sprayed or cut and painted with herbicide one or more
times to thoroughly kill the roots (S). Herbicides should be used sparingly and only with
the advice and supervision of a licensed pest control advisor.
Kelly Ranch Core Area Natural Habitat Revegetation Program 13
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For areas indicated for weed eradication, eradication shall be performed in the following
manner:
1. Remove existing grasses either by scraping the surface of the slope with a small
tractor or by weed whipping grasses and raking them off the slope.
2. Install irrigation system, apply an all purpose fertilizer, such as 250 Ibs/ac of 16-
6-8 and irrigate the slope for two to four weeks.
3. When weeds and grasses area approximately one to two inches in height, spray
with a non selective herbicide.
4. Provide site preparation (including scarification) per installation specifications.
5. Hydroseed and plant container material as specified for the revegetation area.
All herbicide applications shall be determined by and performed under the supervision
of a licensed pest control advisor.
The Landscape Architect shall be notified prior to commencement of weed eradication
work to field verify which plants, weeds and others shall be removed.
Common Weed Species
SPECIES
Brassica spp.
Raphanus spp.
Mesembryanthemum crystallinum
Nicotiana glauca
Cortaderia spp.
Foeniculum vulgare
COMMON NAME
Mustard
Wild Radish
Crystal Ice Plant
Tree Tobacco
Pampas Grass
Sweet Fennel
METHOD OF
ERADICATION
H
H
H
S
S
S
INSPECTION AND REPLACEMENTS
The Landscape Architect shall visit the site on a regular basis during the revegetation
effort to assure that these specifications are complied with. Re-seeding of areas without
coverage by the seed mix shall be performed (hand seeding for small areas.) container
plants which, in the opinion of the landscape architect, are dead or unhealthy, shall be
replaced according to original specifications.
INSPECTION SCHEDULE
The landscape contractor shall walk the project with the landscape architect or his
revegetation consultant weekly during the first month after planting and 2 times per
month thereafter until completion of the revegetation establishment.
4.0 MAINTENANCE MONITORING
Newly installed revegetation areas are subject to five years of monitoring, including
Maintenance Monitoring and Performance Monitoring. This project will employ
personnel with previous revegetation monitoring experience to observe, make
recommendations, and report project status.
The installation contractor will be responsible for maintenance of the installation for a
period of at least 120 days, and shall be responsible for delivering to the Owner's
representative an installation having 100% container survival and uniform germination
Kelly Ranch Core Area Natural Habitat Revegetation Program 14
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throughout all seeded areas. Upon final acceptance of the contractors installation, a
maintenance contractor will be chosen by the Owner to implement the guidelines
summarized in this Section. To ensure that the installation is adequately maintained, a
revegetation monitor will observe maintenance activities, and make recommendations
to the Owner. The revegetation monitor must be a separate source contract with the
Owner, and have authority from the Owner to observe all maintenance activities
occurring on-site.
Maintenance activities will include: irrigation scheduling and monitoring of the irrigation
schedule, weed control, trash removal and vandalism control, weed control, erosion
control, horticultural recommendations, and replacement of vegetation that fails to meet
survival parameters.
IRRIGATION
Supplemental irrigation will assist plant establishment for the duration required to produce
a self-supporting plant community. Irrigation scheduling will be the adjusted per plant
cultural requirements by the revegetation monitor in consultation with the maintenance
contractor. When it is determined by the revegetation monitor in consultation with the
Owner and his representatives that the installation is self-sustaining, written notice will be
provided to Permitting Agencies that cessation of supplemental irrigation has commenced.
In no case shall irrigation be continued beyond the five year monitoring period. Upon
completion of the monitoring phase of the project, the irrigation system will either be
dismantled or abandoned.
TRASH REMOVAL AND VANDALISM CONTROL
Pruning or removal of native vegetation may occur only if approved by the revegetation
monitor. Generally dead wood and leaf litter should remain undisturbed and in place on
the site. Clippings may be left on site, or removed as deemed undesirable by the
revegetation monitor. All weed contaminated clippings must be removed from the
property and disposed of at a recognized disposal site. Trash removal must be
performed by hand, at least twice a year during the monitoring period. Vandalism of
planting, irrigation, and/or other revegetation associated equipment shall be reported in
writing by the maintenance contractor and/or other Owner's representatives to the Owner
within 3 working days of discovery.
WEED CONTROL
Weed control activity will occur throughout the duration of the monitoring period.
Measures available to the contractor include: hand weeding, clipping, weed whipping/
mowing, herbicide applications, and light exclusion. The goal of weed control is to
remove unwanted seed from the site prior to it becoming viable, and to kill invasive
weeds that have established on-site using the least environmentally damaging method
available to the contractor. All pesticide and herbicides must be applied by a licensed
pest control contractor. In the proximity of wetland areas, chemical approved for these
areas (i.e. Rodeo, Roundup) may be used as approved by the revegetation monitor.
At no time will weed growth of mustard and annual grasses be allowed, unless
otherwise directed by the revegetation monitor.
Kelly Ranch Core Area Natural Habitat Revegetation Program 15
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EROSION CONTROL
Repair of manufactured slope plantings due to erosion is part of the maintenance
responsibility for this plan. The maintenance contractor is required to repair small
erosion problems as noticed when they are small, and not to allow them to become
major problems. The revegetation monitor will also be required to anticipate erosion
damage and to inform the Owner of the need for repair. After repaired, seeding and or
container planting of the area as specified by the Owner's representative will occur.
HORTICULTURAL RECOMMENDATIONS
No fertilizer will be applied by the maintenance contractor unless directed by the
revegetation monitor. Various chemical treatments such as hormones, pesticides,
fungicides, and herbicides will not be applied unless a severe threat to the installation is
imminent, and must first be approved by the revegetation monitor. All minor infestations
will be tolerated.
REPLACEMENT OF VEGETATION
Replacement of missing or poorly performing plants will occur as directed by the
revegetation monitor. Plantings specified will have a composition similar to the plant
material specified in the original installation, unless previous establishment failures
suggest otherwise. Timing of the installation and supplemental irrigation procedures will
be determined by the revegetation monitor. If replacement vegetation areas do not
cause the plant community evaluation to fall below acceptable final performance
standards, no extension to the monitoring and maintenance program is required.
5.0 PERFORMANCE MONITORING
This section provides direction for the performance of revegetation monitoring. The
revegetation effort will be deemed successful when the performance standards
specified in this plan have been met. These standards are designed to anticipate a
period when the plantings are self-sustaining and no longer require extensive weed
control. This period is anticipated to be five years following planting for Coastal Sage
Scrub and Southern Maritime Chaparral.
At the time of final acceptance of the contractors installation (scheduled for 120 days
after installation), performance monitoring shall commence. During the first year,
qualitative monitoring shall occur every three months. For subsequent years,
monitoring will occur twice a year. Quantitative data will be collected once each year
(between the months of February and May) to precisely determine surviving species
numbers, species diversity and composition (native vs. non-native), and species
coverage. Qualitative surveys consisting of a general site walkover and
characterization of the revegetation sites will take place during each monitoring visit.
Monitoring Observation Notes shall be recorded and submitted to the Owner and to
Maintenance Contractor during qualitative monitoring site visits. General observations,
such as fitness and health of the revegetation species, pest problems, drought stress,
will be noted in each site walkover.
In the event that any or all of the revegetation plantings should fail to meet the specified
requirements, compliance will be ensured by performing either or both of the following
Kelly Ranch Core Area Natural Habitat Revegetation Program 16
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remedial procedures: 1) unsuccessful plantings will be replaced with appropriately
sized container stock to meet specified coverage requirements and 2) maintenance
procedures will be performed to ensure appropriate site conditions (e.g., non-native
species removal). Remedial actions shall be based upon detailed investigations (such
as soil tests and excavation of failed plantings to examine root development) to
determine causes of failure. Previously documented restoration techniques and
maintenance procedures implemented within the revegetation site(s) will also be
reviewed and analyzed to determine possible causes of failure.
Monitoring results will be recorded and included in yearly status reports to be submitted
to the USFWS and the CDFG. The yearly reports will include photographs from
designated stations within the revegetation sites to provide a visual assessment of the
revegetation progress.
The following performance standards will be obtained within all revegetation areas by
the end of the fifth year following planting.
1) No greater than 5% of the vegetation cover shall be invasive weed species such as:
mustard, artichoke thistle, clovers. The allowable maximum cover of non-native
grasses is 20%.
2) The revegetation site does not require regular significant maintenance measures
such as replanting of seed or container stock, weed control, or erosion control.
3) A minimum of 65% cover or native coastal sage scrub or southern maritime
chaparral species is necessary throughout the revegetation, exclusive of fire
suppression. This percentage can be determined as an average of coverage
throughout the revegetation.
Documentation of the revegetation effort will occur as described below, and culminate in
annual reports submitted to USFWS and CDFG for review.
MONITORING METHODOLOGY
Data collection will occur during regular sampling periods (i.e. quarterly during the first
year and bi-yearly thereafter). During regular sampling periods, data collection will
consist of a qualitative assessment of the entire site and the collection of quantitative
data at permanent sampling locations. At the time of initial plantings, records will be
kept of the species planted, quantities of each species planted, types of plantings, and
location of plantings. If there is significant deviation in the actual planting form the plan,
the location of plantings will be referenced on a map to be compiled by the monitor.
This as-built drawing will be developed for use in monitoring efforts.
QUALITATIVE DATA
Qualitative surveys will consist of a general site walkover and a characterization of the
restoration planting. The surveys will take place every three months for the first year
and bi-yearly thereafter. General observations, such as fitness and health of the
planted species, signs of erosion, and drought stress, will be noted during sampling.
Plants will be examined throughout the site in terms of percentage of cover, species
mortality, species composition, and soil, weed, and pest problems. Maintenance needs
Kelly Ranch Core Area Natural Habitat Revegetation Program 17
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will be recorded on standard maintenance checklists that will be copied and sent to the
maintenance contractor and the project Owner. Yearly summary of qualitative data will
be incorporated into the yearly status reports.
QUANTITATIVE DATA
To augment qualitative data, more precise data will be collected and analyzed to
document and evaluate the revegetation program. The following monitoring technique
is an example of a recommended approach to vegetation monitoring. Actual site
monitoring may no follow this procedure, but will provide data of similar detail.
Immediately following revegetation, permanent sampling location will be established
within the revegetation areas. Test sampling station will be set up prior to establishment
of the permanent sampling stations to verify the suitability of the sampling methodology
described herein. Sampling location swill be surveyed once per year between the
months of February and July to determine percent cover, species diversity, and percent
survival of planted species. Consistent sampling techniques will be used throughout the
monitoring process to ensure accurate comparisons.
Quantitative plant distribution data will be collected for permanent sampling locations
within both the revegetation and preserved CSS / SMC to compare mature CSS / SMC
vegetation with newly planted revegetation areas. The line intercept method will be
used to obtain data on the percentage of cover of bare ground, leaf litter, and each
species present in the understory and shrub layer. The location of each transect will be
marked with rebar stakes placed at the start and finish of the transect. In addition, a
compass bearing will be recorded for each transect. In the event that one or more of
the stakes is removed or lost, the remaining stake, with the compass bearing, will
enable the proper realignment of the transect. Meter-square quadrats will be randomly
placed along each transect to obtain information on species abundance and density.
Photodocumentation stations will be established at each vegetative sampling transect to
photograph the progress of the revegetation over a five year period.
Photodocumentation will be used in the yearly and the final reports to the submitted to
the resource agencies.
RECORD KEEPING
All records will be kept on file with the revegetation monitor. Data collected during the
project will be distributed to the project Owner, USFWS, and CDFG by December of
each sampling year. Records of both positive and negative results from both qualitative
and quantitative sampling efforts will be incorporated into the yearly status reports to be
submitted to resource agencies. In the event that any part of the revegetation should
fail to meet the specified requirements, recommendation for corrective measures will be
solicited form the USFWS and CDFG so that the revegetation effort can be brought
back into compliance as quickly as possible.
MONITORING METHODS
Vegetation cover and survival of key plant species will be estimated by visual analysis
and by transect measurement to confirm visual estimates. The method of transect used
to measure revegetation areas may be chosen by the revegetation monitor, provided
that collected data is truly representative of the revegetation effort.
Kelly Ranch Core Area Natural Habitat Revegetation Program 18
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Year five measurements must be conducted using either the belt transects or the "Point
Intercept" Method of transect measurement, unless another method is approved by the
regulatory authority. Each Revegetation Area must provide at least as many
measurements as shown on the "Transect Monitoring Location Map". This map will
use as its base the as-built construction plans provided by the revegetation contractor
and approved by the Landscape architect.
ANNUAL REPORTS
Annual mitigation maintenance and monitoring reports shall be submitted to the
authorized representative of the CA. Department of Fish and Game. Vegetation will be
analyzed to report on percentage cover, and dominance of species. Height, spread
suckering and growth measurements will also be recorded. Management observations
/ recommendation shall be made regarding: weed status, irrigation regimen,
replacement plantings, and any other issue affecting establishment success.
Kelly Ranch Core Area Natural Habitat Revegetation Program 19